Dosage Calculation Practice Problems
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Questions and Answers

What is the drip rate for an ordered dose of 250 mg with an available concentration of 100 mg/2 mL?

  • 5 mL (correct)
  • 10 mL
  • 2 mL
  • 1 mL

    • How many tablets will a patient receive for an ordered dose of 100 mg if available tablets are 0.05 g each?

  • 3 tablets
  • 2 tablets (correct)
  • 1 tablet
  • 4 tablets

    • What is the drip rate in mL/hr for an ordered rate of 8 mcg/kg/hr for a patient weighing 80 kg with an available concentration of 0.64 mg/2 mL?

    2 mL

    What is the drip rate in mL/hr for an ordered dose of 24 mg over 8 hours with available concentration of 96 mg/4 mL?

    <p>0.125 mL/hr</p> Signup and view all the answers

    Calculate the mL needed for an ordered dose of 400 mcg with an available concentration of 0.08 mg/0.5 mL.

    <p>2.5 mL</p> Signup and view all the answers

    What is the drip rate in mL/hr for an ordered dose of 117 mg/kg over 12 hours for a patient weighing 220 lbs with an available concentration of 260 mg/3 mL?

    <p>3.75 mL/hr</p> Signup and view all the answers

    How many mg will the patient receive after 6 hours for an ordered dose of 6 mL over 12 hours with an available concentration of 120 mg/4 mL?

    <p>90 mg</p> Signup and view all the answers

    Calculate the daily tablet intake for a patient on 196 mg tid using scored tablets of 56 mg each.

    <p>10.5 tablets</p> Signup and view all the answers

    How many mg will the patient receive in one week for an ordered dosage of 1 spray bid from an inhaler with 64 mcg per inhalation?

    <p>0.896 mg</p> Signup and view all the answers

    What is the drip rate in mL/hr for an ordered dose of 0.03 mg over 8 hours with an available concentration of 6 mcg/2 mL?

    <p>1.25 mL/hr</p> Signup and view all the answers

    Study Notes

    Dosage Calculation Practice Problems

    • Dose Ordered vs. Dose Available: Ensure understanding of how to convert between different units, such as mg to g or mcg to mg.

    • Card 1:

      • Order: 250 mg, Available: 100 mg per 2 mL.
      • Calculation: (250/100) × 2 = 5 mL required.

    • Card 2:

      • Order: 100 mg, Available: 0.05 g tablets.
      • 0.05 g equals 50 mg. Required: 100/50 = 2 tablets.

    • Card 3:

      • Order: 8 mcg/kg/hr for 80 kg patient. Available: 0.64 mg per 2 mL.
      • Total dose: 8 × 80 = 640 mcg. Need: (640/640) × 2 = 2 mL to administer.

    • Card 4:

      • Order: 24 mg over 8 hours, Available: 96 mg in 4 mL.
      • Calculation: (24/96) × 4 = 1 mL. Drip rate: 1 mL / 8 hrs = 0.125 mL/hr.

    • Card 5:

      • Order: 400 mcg, Available: 0.08 mg in 0.5 mL.
      • Conversion: 0.08 mg = 80 mcg. Required: (400/80) × 0.5 = 2.5 mL.

    • Card 6:

      • Order: 117 mg/kg over 12 hours for 220 lbs patient. Available: 260 mg/3 mL.
      • Weight conversion: 220 lbs = 100 kg. Total dose calculation: 117 x 100 = 11700 mg.
      • Required: (11700/260) × 3 = 45 mL over 12 hours. Drip rate: 45/12 = 3.75 mL/hr.

    • Card 7:

      • Order: 6 mL over 12 hours, Available: 120 mg/4 mL.
      • Total dose: (6/4) × 120 mg = 180 mg over 12 hrs. In 6 hrs, the patient receives half: 180/2 = 90 mg.

    • Card 8:

      • Order: 196 mg tid, Available: 56 mg scored tablets.
      • Per dose: 196/56 = 3.5 tablets. Daily total: 3.5 × 3 = 10.5 tablets required.

    • Card 9:

      • Order: 1 spray bid, Available: 64 mcg per inhalation.
      • Daily dosage: 64 mcg × 2 = 128 mcg. Weekly total: 128 × 7 = 896 mcg = 0.896 mg.

    • Card 10:

      • Order: 0.03 mg over 8 hours, Available: 6 mcg/2 mL.
      • Conversion: 0.03 mg = 30 mcg. Required: (30/6) × 2 = 10 mL over 8 hrs. Drip rate: 10/8 = 1.25 mL/hr.

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    Description

    Test your knowledge on dosage calculations with these practice problems. Each card presents a different scenario that requires you to determine the correct dosage or rate. Perfect for nursing and pharmacy students to reinforce their understanding of medication dosages.

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